Report: New Zealand Oceans Warming 34% Faster Than Global Average

Published OCT 8

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Above: Fur seals bask in the sun on the Kaikoura Peninsula, South Island, New Zealand on Jan. 10, 2025. Image copyright: Sanka Vidanagama/NurPhoto/Getty Images

The Spin

Climate-skeptic narrative

Reports of ocean warming are often exaggerated by the media and activists to justify more regulation. The severity of climate threats is uncertain, and drastic environmental measures could harm farmers, industries, and jobs. A "least-cost" approach is more sensible — prioritizing economic stability while gradually reducing emissions. Ocean temperatures have fluctuated naturally for centuries, suggesting current changes may be part of a long-term cycle.

1 News ACT New Zealand

Climate-concerned narrative

This warming is due to human-caused emissions. Without action, sea levels could rise 30 cm (1 foot) by 2050, worsening floods and heatwaves. Delay will make adaptation far more costly. The New Zealand government must reinstate climate programs cut in 2024 and expand marine sanctuaries to protect biodiversity. Researchers from the National Institute of Water and Atmospheric Research have said that this decade is critical to prevent irreversible ocean damage.

NIWA Guardian